GSA Today
Volume 19, Number 2 (February 2009)

Cover image

About the cover:
Glacial sequence showing a conformable succession of probable Saalian (illinoian) upward-fining esker margin deposits, unconformably covered by a probable late Weichselian till bed (early Wisconsinan) (gray), which is again unconformably overlain by holocene shoreface deposits. the site is at Jurva in western finland and is typical for the small exposures of glaciogenic deposits upon which the regional stratigraphical frameworks for glaciated shield areas have to be based.

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